Here are the list :
- BlackBerry Flow : For multitasking and BlackBerry Peek allows you to drag the Hub in from the sides of the screen, so you can see what runs in the background, while the currently open app continues to run.
- Contact : Full BBM integration (for other BB10 users) and all sorts of social networking features.
- BlackBerry Hub : Social integration - acts as a central location from where you can quickly switch between your active applications, contacts, and others.
- New Keyboard
- BlackBerry Messenger : Allow video calls and BBM Screenshare now!
- Camera : It features Timeshift, which allows you to take several photos and combine the best elements from each of them.
- Picture/Video Editor
Well here are some walkthrough video. Pretty awesome I must say ;)
Hit the source for more detailed about Blackberry 10 :)